Investment Securities (Investments Gross Unrealized Losses and Fair Value in Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Total, Fair Value	$ 143,800	$ 97,600
Collateralized mortgage obligations, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	41,769	27,457
Less than 12 months, Unrealized Losses	(683)	(281)
12 months or more, Fair Value	4,688	21,271
12 months or more, Unrealized Losses	(160)	(580)
Total, Fair Value	46,457	48,728
Total, Unrealized Losses	(843)	(861)
Municipals
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	31,907	2,739
Less than 12 months, Unrealized Losses	(1,507)	(17)
12 months or more, Fair Value	337	491
12 months or more, Unrealized Losses	(1)	(3)
Total, Fair Value	32,244	3,230
Total, Unrealized Losses	(1,508)	(20)
Corporate obligations
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value		4,425
Less than 12 months, Unrealized Losses		(75)
12 months or more, Fair Value	7,076	2,534
12 months or more, Unrealized Losses	(1,233)	(1,271)
Total, Fair Value	7,076	6,959
Total, Unrealized Losses	(1,233)	(1,346)
Total temporarily impaired securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	131,732	73,270
Less than 12 months, Unrealized Losses	(3,346)	(621)
12 months or more, Fair Value	12,101	24,296
12 months or more, Unrealized Losses	(1,394)	(1,854)
Total, Fair Value	143,833	97,566
Total, Unrealized Losses	(4,740)	(2,475)
Mortgage-backed securities, Government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	58,056	38,649
Less than 12 months, Unrealized Losses	(1,156)	(248)
Total, Fair Value	58,056	38,649
Total, Unrealized Losses	$ (1,156)	$ (248)